Spring-bed.



Patented 0st. 8, |901.

. Nin. 683,905.

J. F. snowrg, S P R I N G B E D.

(Application filed Max'. 6, 1901.)

(No Model.)

Fg. J i,

UNITED STATES PATENT OFFICE.

JOHN FRANKLIN BROWN, PITTSBURG, PENNSYLVANIA.

SPRING-BED.

SPECIFICATION forming part of Letters Patent No. 683,905, dated October 8, 1901. .Application tiled March 6, 1901. `Serial No. 50,099. (No model.)

To all whom, t may concern:

Be it known that I, JOHN FRANKLIN BROWN, a I'esident of Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Spring-Beds; and I do hereby declare the following to be a full, clear, and exact description thereof. Y

My invention relates to an improvement in spring-beds, its object being to provide a strong and durable form of spring-bed which will reduce the tendency to sag which exists in most constructions of this kind and which is perfectly elastic and will return to its normal condition when the weight to which it has been subjected has been removed.

To these ends my invention comprises, generally stated, a spring-bed composed of a series of normally parallel metal cables or,

cords extending from one end of the frame to the other, each of said cables being then deflected alternately to opposite sides, carried over one or more adjacent cables without being connected thereto, and connected at intervals to other cables alternately at opposite sides, thereby forming a double diamond fabric in which there are an upper and a lower fabric separate from each other, the upper fabric consisting` of one set of diamonds and the lower fabric consisting of the other set of diamonds.

To enable others skilled in the art to make and use my invention, I Will describe the same more fully, referring to the accompanying drawings, in which- Figure 1 is a plan view of my improved spring-bed. Fig. 2 is a side View thereof, partly in section. Fig. 3 is an enlarged detail showing the cords or cables composing one set of diamonds lying above those composing the other set of diamonds.

Like letters and numerals indicate like parts in each ofthe figures.

In the drawings the letter a indicates the ordinary side bars, while the letter b indicates the end bars, of the customary springbed frame. Securedvto the end bars b and extending between the same are the cords or cables 1, 2, 3, 4, 5, 6, dto., said cords being normally parallel and preferably arranged in pairs and being secured to the end bars b by means of the securing-strips c. While these cords or cables may be formed of any suitable material, I prefer to use elastic cables formed of spirally-coiled wire interwoven in the ordinary manner; but before applying these cables to the bed in the manner indicated I subject said, cables to a stretching operation which takes out the stretching quality of the cables, but still leaves them elastic, so that when they are stretched on the bed-frame the tendency of the cables to sag is greatly reduced, and at the same time the strain on the frame when the cables are stretched thereon is lessened. After the cables have been treated in the manner described and have been stretched between the end bars b of the frame in parallel lines I proceed to connect the different cables, so as to produce the result sought for. For convenience of description I have numbered the cables successively, no number, however, being used to designate the outside or border cables d at both sides of the frame. In the rst place I connect cables 2 and 5, 6 and 9, 10 and 13, 14 and 17, and 18 and 2l, and so on throughout the series across the frame, said cables being deflected sidewise, carried over one or more intermediate cables, and connected by suitable clips e. I now connect cables l and 3, 4 and 7, 8 and 1l, 12 and 15, 16 and 19, and so on sus throughout the series across the frame, said y coils being likewise deliected sidewise, carried under one or more cables of the other series, and connected by clips in the same manner as before. In this manner the cables 2 5 6 9 10 I3 14 17 18 2l, tbc., are above and crosscables l 3 4 7 8 11 12 15 16 19 20, tbc., as atf. Having completed the iirst line of connections between the cables, I form at a suitable distance from the same a second line of connections, which consists, as before, in deecting the cables of the first series sidewise, but to the opposite side to which they were first dellected, again carrying them over one or more cables of the second series and connecting them by clips, as before, after which the cables of the second series are likewise deflected sidewise, butto the opposite side to which they Were first deected, and, as before, carried under one or more cables of the first series and connected together, the cables being thus connected in such a way as to form a second row of diamonds. Having IOO completed this row, I then form another row of connections, Which in the construction of a hed of the length illustrated completes the structure, although it is apparent that the number of lines of the connections may be increased, so as to decrease the size of the diamonds, without departing from the spirit of my invention.

It will be observed that when the Wires or cables have been connected so as to form a spring-bed of the nature illustrated the cables will have a zigzag course from end to end, and one series of cables, which are indicated in deeper lines and which are designated by the numerals l 3 4 7 8 ll l2, die., will be above and entirely independent and separate from the cables 2 5 6 9 l0 1314, the., as shown more clearly in Fig. 8. By this construction I obtain separate upper and lower fabrics, as it will be found in the actual construction of the bed that it is possible to lift or separate the upper fabric from the lower when any of the wires of the upper fabric are seized and lifted.

My invention, eitherin the form illustrated 0r with a reduced number of Wires, may be employed to support a suitable woven fabric.

It is apparent that instead of connecting the cables by means ofthe clips, as illustrated, the Wires themselves may be crossed and interwoven; but in such case only one end of the wires would be secured to one of the end bars b, as the other end Would have to be free until the intel-Weaving of the different cables had been accomplished for the length ot' the bed, when the free ends would then be secured to the other piece in the ordinary manner. In this case although the cables are not connected at one end of the bed until the fabric has been completed, yet before the cables are connected up to each other they hang in parallel lines with reference to each other in the same case as above, Where both ends of the Wires Were secured to the frame before they were connected together to form the double diamond fabric.

By the above construction I obtain a very stift and rigid but elastic fabric in which the mattress maybe placed directlythereon Without the necessity of employing another fabric or of springs for supporting the fabric, While at the same time I obtain a bed-bottom in which the tendency to sag is practically eliminated owing to the construction employed as Well as the fact that the cables are stretched before they are used in the bed construction. l,

I do not wish to limit my invention particularly to spring-beds, as it may be applied to couch-bottoms, chair-seats, and sleeping car and boat berths.

What I claim as my invention, and desire to secure by LettersPatent, is

1. In a spring-bed, a suitable frame, a series 0t` normally parallel cables extending from one end of said frame to the other, each of said cables being defiected alternately to opposite sides, carried over one or more adjacent cables without being connected thereto and connected at intervals to other cables alternately at opposite sides, whereby each cable has a zigzag course from end to end and a double diamond fabric is formed.

2. In a spring-bed, a suitable frame, two series of normally parallel cables extending from one end of said t'rame to the other, each cable of one series being dellected alternately to opposite sides, carried over one .or more cables of the other series and connected at intervals to cables of its own series alternately at opposite ends, and each cable ot' the other series being likewise deflected alternately to opposite sides, carried under one or more cables of the tirst series and connect ed at intervals to cables of its own series alternately at opposite ends, whereby each cable has a zigzag course from end to end and a double diamond fabric is formed.

3. In a spring-bed, a suitable frame, a series of normally parallel elastic cables formed of spirally-coiled wire and extending from one end ci' said frame to the other, each of said cables being deiiected alternately to opposite sides, carried over one or more adjacent cables Without being connected thereto and connected at intervals to other cables alternately at opposite sides, whereby each cable has a zigzag course from end te end and a double diamond fabric is formed.

In testimony whereof I, the said JOHN FRANKLIN BROWN, havehereunto set my hand.

JOHN FRANKLIN BROIVN.

Vitnesses:

Roer. D, TOTTEN, ROBERT C. To'r'rEN.

IOO 

